Method of making felt products



Nov. 6, 1928.

P. R. BETTISON METHOD OF MAKING FELT PRODUCTS Filed April 12, 1926 I NVEN TOR.

F447 Bum...

(Qua- 1 F -4 A TTORNE Y5 Patented Nov. 6, 1928.

UNITED STATES PATENT OFFICE,

PERCY B. BETTISON, OI CHICAGO, ILLINOIS, ASSIGNOR TO TANNERS PRODUCTS COIL- rm, CHICAGO, ILLINOIS, A CORPORATION OF DELAWARE.

METHOD MAKING FELT PRODUCTS.

- Application filed April 12, 1926. Serial No. 101,540.

The invention relates to a method of producing a felt product, such as is used for refrigerator linings and sound-deadening purposes.

6 One object of the invention is to provlde a method of forming a loosely punch-felted body of animal hair, or other suitable felt-- able fibres, by a continuous process and without theme of the usual burlap or fabric re 1 inforcement. A further object of the invention is to provide a'process for making a felt insulat mg product by a continuous process of forming a loosely punch-felted body of animal hair, or other suitable felt able fibres, provided with a protective heat-insulating coverin which is stitched thereto without rehan lin the materiaL- The invention further Consists in the 2 method and steps of the method hereinafter set forth, and more particularl defined by claims at the conclusion 'hereoi 'The drawing is a diagramat-ic view showing the steps of the method embodying the an invention and the apparatus.

-In the drawing the numeral 2 designates the vibrating needle-carrying member of a needle loom, 3 the table of such loom, and

' 4 an endless belt of loosely woven material,

loosely punched felt, which sheet, is sep-' arated from the belt 4, to which portions of it have been punched, by means of a cutter or separating knife or tool 6 disposed ad- 'jacent the delivery end of the belt 4.

The punched felt, after its's eparation from the belt 4, is led over a table 6 and between two sheets of covering material 7, such as waterproof paper, mounted on supply rolls 8, and passes with this covering through a suitable stitching" machine 9 which puts spaced rows of. stitching 10 through the coverings and the felted body to form the finished product.

What I claim as m invention is:

1.- The method of orming a punch-felted 55 body which consists in carrying the felt bats through'a needle. punching loom on a continuously moving endless conveyor to which parts. of the felt are punched and thereafter cutting the sheet of punched felt from said 66 conveyor. 1

2.; The method of forming a felt-bodied insulation material which consists in carrying the felt bats through a needle unching loom on a continuously moving en less conveyor to which parts of the felt are punched, cutting the sheet of punched felt from said conveyor, feeding this sheet between sheets of covering material and stitching the covering sheets and the sheet of punched felt (9 together.

3. The method of forming a punch-felted body which consists in carrying the felt bats through a needle punching loom on a conveyor to which parts of the felt are secured during the punching process and thereafter cutting the sheet of punched felt from said conveyor.

In testimony wherof, I afiix 1n signature.

' PERCY R. BE ISON. 

